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Finding the Fourth Proportional to 148,952.55, 205,558.51 and 80,974.08

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Solution

The fourth proportional to 148,952.55, 205,558.51 and 80,974.08 is: 111,746.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,952.55 : 205,558.51 = 80,974.08 : x
  2. Step 2: Convert to fraction form
    148,952.55/205,558.51 = 80,974.08/x
  3. Step 3: Cross multiply
    148,952.55x = 205,558.51 × 80,974.08
  4. Step 4: Simplify right side
    148,952.55x = 16,644,911,182.81
  5. Step 5: Solve for x
    x = 16,644,911,182.81/148,952.55
  6. Step 6: Final answer
    x = 111,746.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.